<%--
  Created by IntelliJ IDEA.
  User: Wy
  Date: 2022/5/13
  Time: 9:55
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
${1+1}
${10>3}

<%
  pageContext.setAttribute("name", new String("tom"));
  session.setAttribute("uname", "tom");
%>
${"tom"==name}
<br>
<%--<%=session.getAttribute("user")%>--%>


<%
    int [] arr={};
    pageContext.setAttribute("arr", arr);

%>
<%=arr%>
${empty arr}
${arr}

</body>
</html>
